<；P>；PROBLEM TO BE SOLVED: To provide a system capable of cultivating a plant while easily regulating the growth mode of the plant. <；P>；SOLUTION: This plant cultivation system P0 includes a plurality of light-irradiators for radiating light from different directions to the plant. The light-irradiators are divided to a first light-irradiator L1 and a second light-irradiator L2 according to the difference of the wave length of the irradiating light. Also, by a light-regulator CNT, the time-changing pattern of the intensity of the irradiated light by each of the first and second light-irradiators L1 and L2 is controlled. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
